- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02828852
Study of the Platelet Function During the Last Month of Pregnancy
The objective is to compare women's platelet answer in the last month of pregnancy to women old enough to procreate, no pregnancy and without hormonal treatment.
The hypothesis of research is that the decrease of platelet answer in pregnant women could not only limit the occurence of embolic accidents but also explain the lowest incidence of the arterial thrombosis in comparison with the venous thrombosis.
Studieoversigt
Detaljeret beskrivelse
This is a monocentric study comparing a group of pregnant women and a group of "no pregnancy" women.
The goal of the present study is to determine the impact of pregnancy on platelet function. For this, the study propose to explore, in women in the last month of pregnancy, the ability of platelets to aggregate after activation by strong agonists but also their ability to adhere to a matrix and form thrombies.
The study will include 30 pregnant and 30 "no pregnancy" control women, of childbearing age and not taking hormone therapy. From a blood sample, two types of examination will be implemented:
A) In whole blood, we will evaluate the percentage of platelet adhesion to collagen matrix or fibrinogen and the volume of thrombies formed.
B) In washed platelets and whole blood, we shall determine the percentage of aggregation after activation by different agonists and the amount of certain membrane markers of platelet activation. Furthermore, an assay of estradiol plasma will be made.
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
-
Toulouse, Frankrig
- University Hospital of Toulouse
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Signature of the form of consent
Absence of any physical or psychic pathology which can interfere with the normal realization of the study
- Group1 : Women in the last month of pregnancy
- Group 2 : Women old enough to procreate, no pregnancy and without hormonal treatment
Exclusion Criteria:
- Thrombopenia (platelet numeration < 120 000 / mm3),
- Gestational diabet,
- Hormonal treatment : oestrogen-progestagen, progestagen, Selective Estrogen Receptor Modulator (SERM), inductors of ovulation,
- Anticoagulant and any medication which can intervene on the platelet function (AINS, antidepressants)
- Personal history of thromboembolic accident venous or arterial,
- Personal history of haemostasis disease
- Personal history of hepatic or renal disease
- Personal history of autoimmune disease.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Eksperimentel: Pregnancy
Blood sample
|
In washed platelets and whole blood, study shall determine the percentage of aggregation after activation by different agonists and the amount of certain membrane markers of platelet activation. Furthermore, an assay of estradiol plasma will be made. In whole blood, study will evaluate the percentage of platelet adhesion to collagen matrix or fibrinogen and the volume of thrombies formed.
Andre navne:
|
Eksperimentel: No pregnancy
Blood sample
|
In washed platelets and whole blood, study shall determine the percentage of aggregation after activation by different agonists and the amount of certain membrane markers of platelet activation. Furthermore, an assay of estradiol plasma will be made. In whole blood, study will evaluate the percentage of platelet adhesion to collagen matrix or fibrinogen and the volume of thrombies formed.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
surface covered by platelets
Tidsramme: baseline
|
Percentage of surface covered by platelets (using the software Metamorph)
|
baseline
|
Volume of thrombies
Tidsramme: baseline
|
Total volume of thrombies in μm3 (using the software Metamorph)
|
baseline
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Platelet aggregation
Tidsramme: baseline
|
Percentage of platelet aggregation (whole blood and washed platelets)
|
baseline
|
chemokine Platelet Factor 4
Tidsramme: baseline
|
Quantity of the chemokine Platelet Factor 4 (PF4) (IU/ml) secreted by the granules after activation by these agonists (washed platelets)
|
baseline
|
Thromboglobulin
Tidsramme: baseline
|
Quantity of thromboglobulin (in ng / ml) secreted by the granules after activation by these agonists (washed platelets)
|
baseline
|
Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Ledende efterforsker: PARANT Olivier, MD PhD, University Hospital, Toulouse
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- 09 163 02
- Local Grant 2009 (OTHER_GRANT: 0916002)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
Kliniske forsøg med Graviditet
-
King's College Hospital NHS TrustEuropean Association for the Study of the LiverRekrutteringCirrhose, lever | HELLP syndrom | Intrahepatisk kolestase af graviditet | Graviditetssygdom | AFLP - Acute Fatty Lever of PregnancyDet Forenede Kongerige
Kliniske forsøg med Blood sample
-
Hillel Yaffe Medical CenterUkendt
-
University of Colorado, DenverRekrutteringEnkelt-ventrikel | Abnormitet i pulmonal vaskulær modstand | Metabolomics | Superior Cavo-pulmonal anastomose | EndotelinForenede Stater
-
ExThera Medical Europe BVExThera Medical Corporation; Vivantes Clinic NeuköllnRekrutteringBlodbaneinfektionFrankrig, Tyskland, Holland, Østrig, Belgien, Italien, Polen, Spanien, Det Forenede Kongerige
-
Ascensia Diabetes CareAfsluttet
-
Ascensia Diabetes CareAfsluttetDiabetesForenede Stater
-
University of British ColumbiaIkke rekrutterer endnuForhøjet blodtryk
-
Stanford UniversityRekrutteringKarsygdomme | Slag | Forhøjet blodtryk | TIAForenede Stater
-
Ascensia Diabetes CareAfsluttetDiabetesForenede Stater
-
University of the Balearic IslandsAfsluttetBlodtryk | ModstandstræningSpanien
-
Helios Klinik Gotha/OhrdrufHelios Klinikum ErfurtIkke rekrutterer endnu